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Calculate pace, performance scores, training zones, game statistics, and common sport-specific metrics.
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Running Pace Calculator
Calculate running pace, speed, distance, or finish time.
Heart Rate Zone Calculator
Estimate training heart-rate zones from age or a measured maximum rate.
Negative Split Running Calculator
Split target time and distance into two explicitly sized segments, then compare first and adjusted second-segment pace with each other and with the entered even-pace reference.
Sports Drink Sodium Planner Calculator
Estimate sodium loss from sweat volume and sweat-sodium concentration, apply the entered replacement fraction, subtract non-drink sodium, and convert the remainder into...
Team Training Load Budget Calculator
Use the session-RPE method (duration multiplied by perceived exertion), adjust training exposure for average participation, add match load, and compare the per-player week...
Return to Training Performance Calculator
Stage return-to-training work, sets, active time, recovery, transitions, intensity, and weekly exposure.
HotRace Performance Calculator
Apply an adjustable distance-time power law to a known race result, then translate the projected target time into average pace, speed, and cumulative split timing.
Heart Rate Reserve Zone Calculator
Use an explicitly selected maximum heart rate, show the Tanaka age estimate only as a comparison, then add selected fractions of heart-rate reserve to resting heart rate.
Exercise Hydration Replacement Calculator
Apply a selected replacement fraction to a measured sweat rate and duration, then convert the fluid plan into servings and entered sodium content.
Cycling Interval Workload Calculator
Build the interval block from repeated power-duration rectangles, count only between-repetition recoveries, convert watt-seconds to kilojoules, and compare target power with...
Swim Performance Calculator
Fit a distance-time line through one shorter and one longer maximal test; its slope is critical swim speed and its intercept is a finite above-critical distance reserve.
Maximum Heart Rate Formula Comparison Calculator
Compare two common age-predicted maximum-heart-rate formulas with an observed peak, then calculate the selected intensity by both percent-of-maximum and heart-rate-reserve...
Sweat Rate Calculator
Reconcile body-mass change with fluid intake and urine output, then divide estimated sweat loss by measured exercise duration.
Cycling Power Training Zone Calculator
Build a user-configurable sequence of power bands from FTP and compare an entered target power with the same FTP basis.
Running Split Pacing Plan Calculator
Remove planned non-running time from the elapsed target, solve the required moving pace, and normalize a linear opening-to-closing pace progression so its mean still...
One-Rep Max Training Zone Calculator
Estimate 1RM independently with Epley, Brzycki, and Lombardi equations, average them for a consensus screen, then calculate and conservatively round down the target training load.
Race Projection Calculator
Scale a known race result by an explicit distance-fatigue exponent, then apply separately entered training and target-course adjustments.
Endurance Carbohydrate Fueling Calculator
Multiply the entered hourly target by duration, subtract planned drink carbohydrate, and convert the remainder into whole food or gel units.
Cycling Power Pace Estimator
Scale speed from an observed power-speed reference using a cube-root relationship, then apply explicit grade and wind adjustment assumptions.
Endurance Carbohydrate Target Calculator
Multiply the entered hourly carbohydrate rate by exercise duration, retain the entered tolerance factor, and reconcile the target against carried fuel and the planned feeding...
Swimming Interval Session Calculator
Separate target swim time from the send-off clock, count recovery only between repetitions, add easy-section distance at its own pace, and convert the entire plan to pool lengths.
Training Volume Performance Calculator
Aggregate training-volume work units, sets, athletes, active time, recovery, transitions, intensity, and weekly sessions into workload.
Running Split Calculator
Convert the target time to an average pace, apply an optional elevation allowance, and build cumulative timing checkpoints at the selected split distance.
Race Training Zone Calculator
Use the heart-rate-reserve method to calculate five intensity bands from the entered resting and maximum rates, while retaining the observed threshold rate as a separate reference.
Race Pace Calculator
Convert a known race result into pace and speed, apply an explicit target-distance pace adjustment, and calculate target finish and split timing.
Cooper 12-Minute Test VO2 Estimate Calculator
Apply the Cooper-test distance equation, preserve a distance-measurement range, report lap and average-speed references, and use body weight only to translate the normalized...
Recovery Carbohydrate Target Calculator
Calculate the entered gram-per-kilogram-per-hour recovery target across the priority window, then compare it with the current plan and practical portion size.
Gym Membership Unit Economics Calculator
Model gym membership membership movement from opening members, new acquisition and churn, then calculate recurring revenue, contribution, acquisition spend, operating profit,...
Rowing Split Work Calculator
Convert the 500-metre split to time per repetition, count only between-repetition rests, apply the standard ergometer pace-to-watts relationship, and estimate stroke budget...
Basketball Performance Calculator
Structure basketball drills, rounds, work, recovery, transitions, intensity, players, and weekly practice load.
Sports Score Percentage Calculator
Calculate win rate, points earned, maximum available points, points percentage, and unbeaten rate from the entered record and league scoring system.
Running Oxygen Cost Calculator
Use the ACSM running equation to separate horizontal, grade, and resting oxygen-cost components at a steady entered speed.
Pre-Workout Carbohydrate Target Calculator
Apply the explicitly chosen gram-per-kilogram rate to body weight, then check current coverage, practical portions, lead time and the entered fiber ceiling.
Triathlon Leg Time Budget Calculator
Convert each discipline from its natural pace or speed unit, add transitions, apply contingency to the complete base race plan, and compare the adjusted finish with the event...
Soccer Performance Calculator
Structure soccer drills, rounds, work, recovery, transitions, intensity, players, and weekly exposure.
Cycling Power-to-Weight Calculator
Normalize sustained power to rider mass and total system mass, and connect the result with duration work and a user-entered target.
Race Performance Comparison Calculator
Normalize two race results by pace and speed, then apply one explicit distance-equivalence exponent to compare performances and a selected target distance.
Post-Workout Protein Target Calculator
Multiply body weight by the entered post-workout protein rate and reconcile the target with the current plan, product serving and practical single-meal amount.
Strength Session Volume Calculator
Calculate repetitions and load-volume separately for primary, secondary, and accessory work, then build a time budget from rep tempo and only the rests between sets within...
Baseball Performance Calculator
Plan baseball drill rounds, repetitions, work, recovery, transitions, intensity, athletes, and weekly frequency.
One-Rep Max Formula Comparison Calculator
Compare three named repetition-based one-rep-max equations in one consistently selected mass unit, report their spread, and round a selected training percentage down to the...
Race Recovery Planning Calculator
Keep race load, entered fluid-loss estimate, nutrition multipliers, sleep opportunity, and easy-movement plan as separate recovery references.
Running Race Workload Calculator
Separate weekly volume, quality share, long-run concentration, elevation density, and planned progression rather than collapsing training into pace alone.
Hiking Hydration Planner Calculator
Build the hiking hydration estimate from body weight, an entered per-kilogram rate, activity duration, an hourly activity addition, and an explicit environment adjustment,...
Circuit Training Work-Rest Calculator
Count station work bouts, within-round transitions, and between-round rests independently; then combine the circuit block with warm-up and cool-down and calculate duty cycle...
Tennis Performance Calculator
Build a tennis drill session from repetitions, rounds, work, recovery, transitions, intensity, players, and weekly exposure.
One Rep Max Calculator
Calculate Epley and Brzycki estimates from submaximal weight and repetitions, average them, apply a training-max percentage, and use planned sets to expose total repetitions...
Acute Chronic Workload Ratio Calculator
Compare current seven-day load with the mean of four prior weekly loads and keep week-to-week change and session load visible.
Cycling Power Performance Calculator
Normalize cycling power by rider and system mass, compare normalized power with entered FTP, and calculate mechanical work and a transparent TSS-style reference.
Tournament Round-Robin Game Calculator
Count every unordered team pair once, multiply by repeat meetings, pack games into simultaneous venue slots, and use the larger of the venue-capacity and per-team recovery day...
Triathlon Performance Calculator
Aggregate triathlon intervals, sets, work, recovery, transitions, intensity, athletes, and weekly workload.
VO2 Max Calculator
Use the 12-minute Cooper distance equation and show a separate heart-rate-ratio estimate for context.
Strength Training Volume Load Calculator
Sum sets times repetitions times external load across three exercises in one consistently selected mass unit, then report total repetitions, average load, and a...
Race Fueling Carbohydrate Calculator
Build an on-course carbohydrate requirement from race duration and the entered hourly rate, then reconcile carried fuel, reliable aid-station supply, product units and timing...
Practice Station Rotation Calculator
Divide athletes into simultaneous starting groups, test each group against the station capacity, count transitions only between rounds, and add briefing, warm-up, rotation,...
Golf Handicap Performance Calculator
Organize golf practice drills, rounds, work, recovery, transitions, intensity, and weekly frequency into practice load.
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Choose the metric that matches the event
Sports calculators work with pace, distance, speed, race projections, training zones, scores, standings, and performance statistics. The relevant metric depends on the sport and the decision being made.
Use the event's actual distance, elapsed-time convention, scoring rule, and unit system. Training targets and projections do not fully account for terrain, weather, tactics, fatigue, injury, or competition conditions.
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Which sports calculator should I use?
| Calculator | Main inputs | Main outputs | Best for |
|---|---|---|---|
| Running Pace Calculator | Distance and elapsed time | Pace and speed | Completed or planned runs |
| Heart Rate Zone Calculator | Age or measured heart rates and zone method | Training-zone boundaries | Heart-rate training plans |
| One Rep Max Calculator | Lifted weight and repetitions | Estimated one-repetition maximum | Strength-load planning |
| Race Projection Calculator | Known performance and target distance | Projected finish time and pace | Distance-race estimates |
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